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This code is licensed under creative commons share alike and attribution by j rodrigo.
Hc sr04 arduino beispiel. After buying a hc sr04 from amazon i could not get it to work out of the box. You will learn how to interface ultrasonic sensor hc sr04 with arduino. Ardublog mi blog en español sobre arduino ardublog libreria para arduino del modulo ultrasonic ranging hc sr04.
Simple arduino and hc sr04 example. Make sure to check the pin definitions and. This sensor is very popular among the arduino tinkerers.
We would like to show you a description here but the site won t allow us. After spending far too long on this than i felt i needed to i decided to ma. 1 ultrasonic sensor hc sr04 procedure.
In particular a switch statement compares the value of a variable to the values specified in case statements. It can be an ultrasonic range sensor or any purposes. Coding in the arduino language will control your circuit.
But what you will get from the echo pin will be double that number because the sound wave needs to travel forward and bounce backward so in order to get the distance in cm we need to multiply the received travel time value. 1 arduino uno r3. Open the arduino ide software on your computer.
Beginner protip 1 hour 111 825. In this project the ultrasonic sensor reads and writes the distance to an object in the serial monitor. Like if statements switch case controls the flow of programs by allowing programmers to specify different code that should be executed in various conditions.
When a case statement is found whose value matches that of the variable the code in that case statement is run. For example if the object is 20 cm away from the sensor and the speed of the sound is 340 m s or 0 034 cm µs the sound wave will need to travel about 588 microseconds. Library for hc sr04 ultrasonic distance sensor.
Follow the circuit diagram and make the connections as shown in the image given below. Ultrasonic sensor hc sr04 ultrasonic sensor hc sr04 sen 15569 this is the hc sr04 ultrasonic ranging sensor. Things used in this project.
Library for hc sr04 ultrasonic distance sensor. Not wanting to concede i had a doa sensor on my hands i searched for a simple example setup. Ultrasonic sensor hc sr04 with arduino tutorial.
Open a new sketch file by clicking new. So here we provide an example on how to use the hc sr04 ultrasonic sensor with the arduino. How to plug the ultrasonic hc sr04 into the arduino using the example plugandplay.
Source : pinterest.com